/*
 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
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 *
 *
 *
 *
 *
 *
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 */

package javax.swing.plaf.basic;

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import java.awt.*;
import java.awt.event.*;


/**
 * BasicViewport implementation
 *
 * @author Rich Schiavi
 */
public class BasicViewportUI extends ViewportUI {

  // Shared UI object
  private static ViewportUI viewportUI;

  public static ComponentUI createUI(JComponent c) {
    if (viewportUI == null) {
      viewportUI = new BasicViewportUI();
    }
    return viewportUI;
  }

  public void installUI(JComponent c) {
    super.installUI(c);
    installDefaults(c);
  }

  public void uninstallUI(JComponent c) {
    uninstallDefaults(c);
    super.uninstallUI(c);
  }

  protected void installDefaults(JComponent c) {
    LookAndFeel.installColorsAndFont(c,
        "Viewport.background",
        "Viewport.foreground",
        "Viewport.font");
    LookAndFeel.installProperty(c, "opaque", Boolean.TRUE);
  }

  protected void uninstallDefaults(JComponent c) {
  }
}
